It seems to be none of the above
Let sales be x
<span>.03x = 180 </span>
<span>divide both sides by .03 </span>
<span>x = 180/.03 = 6000</span>
8/12 is .67, when rounded. In order to find her percentage, multiply .67 by 100 to get it. She got 66.7%, when rounded, on the test.
It’s called an equilateral triangle because all sides are even. A triangle equals 180 degrees. So, 60 degrees x 3 sides = 180 degrees